Damping and noise-reducing electric fan motor

Abstract

The utility model discloses a shock-absorbing noise-reducing electric fan motor, which relates to the technical field of motors, and comprises a cover body assembly and a shock-absorbing mechanism, the cover body assembly comprises a first motor cover, a second motor cover and a thickened steel sheet, the thickened steel sheet is arranged between the first motor cover and the second motor cover, and the shock-absorbing mechanism comprises a fixing ring. The fixing ring is fixedly connected to the side of the outer wall of the first motor cover and the side of the outer wall of the second motor cover in a sleeving mode. A rubber gasket is arranged between the fixing ring and the thickened steel sheet. According to the utility model, the arrangement of the rubber gaskets enables the first motor cover and the thickened steel sheet as well as the second motor cover and the thickened steel sheet not to be in rigid contact through the rubber gaskets, so that even if a gap occurs, the motor works to generate vibration due to the gap, the vibration is absorbed through the flexible characteristic of the rubber gaskets, and the damping effect is achieved; meanwhile, the generated noise can be absorbed, the generation of the noise is reduced, and the working stability of the motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a shock-absorbing and noise-reducing electric fan motor. Background Technique

[0002] The motor is an important component of the electric fan. After the electric fan is powered on, the main shaft of the motor drives the fan blade to rotate for work.

[0003] The electric fan motor mainly consists of an outer cover and the internal rotor and stator. The common motor outer cover is now arranged in a split manner. A thickened steel sheet for stator support is arranged between the two separated outer covers. When assembling the motor, the separated outer cover and the thickened steel sheet are fixed by bolts.

[0004] However, both the outer cover and the thickened steel sheet are made of metal. After a gap is generated between the outer cover and the thickened steel sheet, vibrations will occur due to the operation of the motor, and the vibrations caused by the hard contact will also generate relatively large noises, thereby reducing the working stability of the electric fan motor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shock-absorbing and noise-reducing electric fan motor to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A shock-absorbing and noise-reducing electric fan motor, comprising:

[0007] A cover body assembly, the cover body assembly includes a first motor cover, a second motor cover and a thickened steel sheet. The thickened steel sheet is arranged between the first motor cover and the second motor cover, and a fixing mechanism is arranged between the first motor cover and the second motor cover;

[0008] A shock-absorbing mechanism, the shock-absorbing mechanism is arranged between the first motor cover and the thickened steel sheet and between the second motor cover and the thickened steel sheet. The shock-absorbing mechanism includes a fixing ring, the fixing ring is fixedly sleeved on the side of the outer walls of the first motor cover and the second motor cover, and a rubber gasket is arranged between the fixing ring and the thickened steel sheet.

[0009] Preferably, the fixing mechanism includes a locking bolt. A second jack is opened on the front surface of the fixing ring. The outer wall of the locking bolt is movably inserted into the inner wall of the second jack. A first jack is opened on the front surface of the thickened steel sheet. The outer wall of the locking bolt is movably inserted into the inner wall of the first jack. A locking nut is threadedly sleeved on the outer wall of the locking bolt.

[0010] Preferably, a third jack is opened on the front surface of the rubber gasket. The outer wall of the locking bolt is movably inserted into the inner wall of the third jack.

[0011] Preferably, a rubber gasket ring is sleeved on the outer wall of the locking bolt. A fourth jack is opened on the front surface of the rubber gasket ring. The outer wall of the locking bolt is movably inserted and connected with the inner wall of the fourth jack. The rubber gasket ring is arranged between the locking nut and the fixing ring and between the knob of the locking bolt and the fixing ring. A connecting mechanism is arranged between the rubber gasket ring and the rubber washer.

[0012] Preferably, the connecting mechanism includes a rubber connecting block. The outer wall of the rubber connecting block is fixedly connected with the outer wall of the rubber gasket ring. The outer wall of the rubber connecting block is fixedly connected with the outer wall of the rubber washer.

[0013] Preferably, a connecting main shaft is rotatably inserted through the front surface of the first motor cover. External threads are provided at the end of the connecting main shaft. Clamping shafts are symmetrically and fixedly connected to the outer wall of the connecting main shaft. A heat dissipation mechanism is arranged on the outer walls of the first motor cover and the second motor cover.

[0014] Preferably, the heat dissipation mechanism includes a plurality of heat dissipation fins. The plurality of heat dissipation fins are all fixedly connected to the outer walls of the first motor cover and the second motor cover. The heat dissipation fins are arranged at intervals.

[0015] The technical effects and advantages of the present utility model:

[0016] By using the rubber washer provided in the present utility model, there is no hard contact between the first motor cover and the thickened steel sheet and between the second motor cover and the thickened steel sheet through the rubber washer. Even when there are gaps, the motor will vibrate due to the gaps during operation. Thus, the flexible characteristics of the rubber washer are used to absorb the vibration, achieving the effect of shock absorption. At the same time, the generated noise will also be absorbed, reducing the generation of noise, thereby improving the stability of the motor operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present utility model.

[0018] Figure 2 is a schematic side sectional structure diagram of the rubber gasket ring of the present utility model.

[0019] In the figure: 101, first motor cover; 102, second motor cover; 103, thickened steel sheet; 201, rubber washer; 202, fixing ring; 301, first jack; 302, locking bolt; 303, second jack; 304, locking nut; 401, third jack; 501, rubber gasket ring; 502, fourth jack; 601, rubber connecting block; 701, connecting main shaft; 702, external threads; 703, clamping shaft; 801, heat dissipation fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides a shock-absorbing and noise-reducing electric fan motor as Figure 1-2 shown, which includes a cover body assembly and a shock-absorbing mechanism. The cover body assembly includes a first motor cover 101, a second motor cover 102, and a thickened steel sheet 103. The thickened steel sheet 103 is disposed between the first motor cover 101 and the second motor cover 102. A fixing mechanism is provided between the first motor cover 101 and the second motor cover 102. A connecting main shaft 701 is rotatably inserted through the front surface of the first motor cover 101. An external thread 702 is provided at the end of the connecting main shaft 701. Clamping shafts 703 are symmetrically and fixedly connected to the outer wall of the connecting main shaft 701. A heat dissipation mechanism is provided on the outer walls of the first motor cover 101 and the second motor cover 102. A stator and a rotor are provided between the first motor cover 101 and the second motor cover 102. The rotor is connected to the connecting main shaft 701, so that the motor can drive the connecting main shaft 701 to rotate stably. The external thread 702 and the clamping shafts 703 facilitate the connection of the connecting main shaft 701 with the fan blade, so that the motor can drive the fan blade to rotate stably. The thickened steel sheet 103 is used for the support of the stator, which can enhance the overall stability of the motor.

[0022] In a preferred embodiment, the shock-absorbing mechanism is disposed between the first motor cover 101 and the thickened steel sheet 103, and between the second motor cover 102 and the thickened steel sheet 103. The shock-absorbing mechanism includes a fixing ring 202. The fixing ring 202 is fixedly sleeved on the side of the outer walls of the first motor cover 101 and the second motor cover 102. A rubber gasket 201 is provided between the fixing ring 202 and the thickened steel sheet 103. The rubber gasket 201 enables there to be no hard contact between the first motor cover 101 and the thickened steel sheet 103, and between the second motor cover 102 and the thickened steel sheet 103. Even when there are gaps, the motor will vibrate due to the gaps during operation. Thus, the flexible characteristics of the rubber gasket 201 are used to absorb the vibration, achieving the shock-absorbing effect. At the same time, the generated noise will also be absorbed, reducing the generation of noise, thereby improving the stability of the motor operation.

[0023] Among them, the fixing mechanism includes a locking bolt 302. A second jack 303 is opened on the front of the fixing ring 202. The outer wall of the locking bolt 302 is movably inserted into the inner wall of the second jack 303. A first jack 301 is opened on the front of the thickened steel sheet 103. The outer wall of the locking bolt 302 is movably inserted into the inner wall of the first jack 301. A locking nut 304 is threadedly sleeved on the outer wall of the locking bolt 302. A third jack 401 is opened on the front of the rubber washer 201. The outer wall of the locking bolt 302 is movably inserted into the inner wall of the third jack 401. By passing the locking bolt 302 through the second jack 303 and the locking bolt 302, and then tightening the locking nut 304 on the outer wall of the locking bolt 302, the first motor cover 101 and the second motor cover 102 can be connected.

[0024] Among them, a rubber gasket ring 501 is sleeved on the outer wall of the locking bolt 302. A fourth jack 502 is opened on the front of the rubber gasket ring 501. The outer wall of the locking bolt 302 is movably inserted into the inner wall of the fourth jack 502. The rubber gasket ring 501 is arranged between the locking nut 304 and the fixing ring 202 and between the knob of the locking bolt 302 and the fixing ring 202. A connecting mechanism is arranged between the rubber gasket ring 501 and the rubber washer 201. Through the rubber gasket ring 501, there is no hard contact between the locking nut 304 and the fixing ring 202 and between the knob of the locking bolt 302 and the fixing ring 202, further reducing the generation of noise. At the same time, the rubber gasket ring 501 has elastic mobility. When the locking nut 304 is tightened on the outer wall of the locking bolt 302, the two rubber gasket rings 501 will be squeezed and deformed, so that the rubber gasket ring 501 will generate a reverse extrusion force on the locking nut 304 and the knob of the locking bolt 302, so that the locking nut 304 is not easy to loosen on the outer wall of the locking bolt 302, thereby improving the working stability of the fixing mechanism.

[0025] Among them, the connecting mechanism includes a rubber connecting block 601. The outer wall of the rubber connecting block 601 is fixedly connected to the outer wall of the rubber gasket ring 501. The outer wall of the rubber connecting block 601 is fixedly connected to the outer wall of the rubber washer 201. Through the rubber connecting block 601, the rubber washer 201 and the rubber gasket ring 501 are fixed to each other, thereby improving the using stability of the rubber washer 201 and the rubber gasket ring 501. Also, the rubber washer 201, the rubber gasket ring 501 and the rubber connecting block 601 can be processed by an integral molding process.

[0026] Among them, the heat dissipation mechanism includes a plurality of heat dissipation fins 801. The plurality of heat dissipation fins 801 are all fixedly connected to the outer walls of the first motor cover 101 and the second motor cover 102. The heat dissipation fins 801 are arranged at intervals. The contact area between the electric fan motor and the external air is increased by the plurality of heat dissipation fins 801, so that the heat generated when the electric fan motor works can be quickly dissipated, thereby ensuring the stability of the electric fan motor during operation.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shock-absorbing and noise-reducing electric fan motor, characterized in that, Including: A cover assembly, the cover assembly includes a first motor cover (101), a second motor cover (102) and a thickened steel sheet (103), the thickened steel sheet (103) is arranged between the first motor cover (101) and the second motor cover (102), and a fixing mechanism is arranged between the first motor cover (101) and the second motor cover (102); A shock absorption mechanism, the shock absorption mechanism is arranged between the first motor cover (101) and the thickened steel sheet (103) and between the second motor cover (102) and the thickened steel sheet (103), the shock absorption mechanism includes a fixing ring (202), the fixing ring (202) is fixedly sleeved on the side of the outer walls of the first motor cover (101) and the second motor cover (102), and a rubber washer (201) is arranged between the fixing ring (202) and the thickened steel sheet (103).

2. The shock-absorbing and noise-reducing electric fan motor according to claim 1, wherein The fixing mechanism includes a locking bolt (302), a second jack (303) is opened on the front of the fixing ring (202), the outer wall of the locking bolt (302) is movably inserted into the inner wall of the second jack (303), a first jack (301) is opened on the front of the thickened steel sheet (103), the outer wall of the locking bolt (302) is movably inserted into the inner wall of the first jack (301), and a locking nut (304) is threadedly sleeved on the outer wall of the locking bolt (302).

3. The shock-absorbing and noise-reducing electric fan motor according to claim 2, wherein A third jack (401) is opened on the front of the rubber washer (201), and the outer wall of the locking bolt (302) is movably inserted into the inner wall of the third jack (401).

4. A shock-absorbing and noise-reducing electric fan motor according to claim 2, characterized in that, A rubber pad ring (501) is sleeved on the outer wall of the locking bolt (302), a fourth jack (502) is opened on the front of the rubber pad ring (501), the outer wall of the locking bolt (302) is movably inserted into the inner wall of the fourth jack (502), the rubber pad ring (501) is arranged between the locking nut (304) and the fixing ring (202) and between the knob of the locking bolt (302) and the fixing ring (202), and a connecting mechanism is arranged between the rubber pad ring (501) and the rubber washer (201).

5. The shock-absorbing and noise-reducing electric fan motor according to claim 4, wherein The connecting mechanism includes a rubber connecting block (601), the outer wall of the rubber connecting block (601) is fixedly connected to the outer wall of the rubber pad ring (501), and the outer wall of the rubber connecting block (601) is fixedly connected to the outer wall of the rubber washer (201).

6. The shock-absorbing and noise-reducing electric fan motor according to claim 1, wherein, A connecting main shaft (701) is rotatably inserted through the front of the first motor cover (101), an external thread (702) is provided at the end of the connecting main shaft (701), clamping shafts (703) are symmetrically and fixedly connected to the outer wall of the connecting main shaft (701), and a heat dissipation mechanism is arranged on the outer walls of the first motor cover (101) and the second motor cover (102).

7. The shock-absorbing and noise-reducing electric fan motor according to claim 6, wherein, The heat dissipation mechanism includes a plurality of heat dissipation fins (801), and the plurality of heat dissipation fins (801) are all fixedly connected to the outer walls of the first motor cover (101) and the second motor cover (102), and the heat dissipation fins (801) are arranged at intervals.

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